Detections
Analytics
AlmaLinux 9 : tigervnc (ALSA-2025:2500)
high Nessus Plugin ID 236852
Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:2500 advisory.* X.Org: Xwayland: Use-after-free of the root cursor (CVE-2025-26594)
* xorg: xwayland: Use-after-free in SyncInitTrigger() (CVE-2025-26601)
* xorg: xwayland: Use-after-free in PlayReleasedEvents() (CVE-2025-26600)
* xorg: xwayland: Use of uninitialized pointer in compRedirectWindow() (CVE-2025-26599)
* xorg: xwayland: Out-of-bounds write in CreatePointerBarrierClient() (CVE-2025-26598)
* xorg: xwayland: Buffer overflow in XkbChangeTypesOfKey() (CVE-2025-26597)
* xorg: xwayland: Heap overflow in XkbWriteKeySyms() (CVE-2025-26596)
* Xorg: xwayland: Buffer overflow in XkbVModMaskText() (CVE-2025-26595)
Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 236852
File Name: alma_linux_ALSA-2025-2500.nasl
Version: 1.1
Type: local
Family: Alma Linux Local Security Checks
Published: 5/16/2025
Updated: 5/16/2025
Supported Sensors: Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2025-26601
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:alma:linux:tigervnc-icons, p-cpe:/a:alma:linux:tigervnc-license, cpe:/o:alma:linux:9::highavailability, p-cpe:/a:alma:linux:tigervnc-selinux, p-cpe:/a:alma:linux:tigervnc-server, p-cpe:/a:alma:linux:tigervnc-server-module, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::crb, p-cpe:/a:alma:linux:tigervnc-server-minimal, p-cpe:/a:alma:linux:tigervnc, cpe:/o:alma:linux:9::baseos
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 3/10/2025
Vulnerability Publication Date: 2/18/2025
Reference Information
CVE: CVE-2025-26594, CVE-2025-26595, CVE-2025-26596, CVE-2025-26597, CVE-2025-26598, CVE-2025-26599, CVE-2025-26600, CVE-2025-26601